Seiko Cal. 6659 - 940

The 6659-940 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-0a7ca0dcbd90]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1977

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